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3dd66f6ce2
Move board specific configuration into machine conf Signed-off-by: Pavel Zhukov <pavel@zhukoff.net>
62 lines
2.1 KiB
Diff
62 lines
2.1 KiB
Diff
From c8a4ee832a4f9c37fffa7b68b6a73504b77263e3 Mon Sep 17 00:00:00 2001
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From: Vasily Khoruzhick <anarsoul@gmail.com>
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Date: Tue, 7 Feb 2023 00:39:10 +0100
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Subject: [PATCH 1/3] Bluetooth: Add new quirk for broken local ext features
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page 2
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Cc: pavel@zhukoff.net
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Some adapters (e.g. RTL8723CS) advertise that they have more than
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2 pages for local ext features, but they don't support any features
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declared in these pages. RTL8723CS reports max_page = 2 and declares
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support for sync train and secure connection, but it responds with
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either garbage or with error in status on corresponding commands.
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Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
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Signed-off-by: Bastian Germann <bage@debian.org>
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Upstream-Status: Submitted [https://lore.kernel.org/netdev/20230206233912.9410-2-bage@debian.org/T/]
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Signed-off-by: Pavel Zhukov <pavel@zhukoff.net>
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---
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include/net/bluetooth/hci.h | 8 ++++++++
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net/bluetooth/hci_event.c | 4 +++-
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2 files changed, 11 insertions(+), 1 deletion(-)
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diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
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index e004ba04a9ae..c373a25fc696 100644
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--- a/include/net/bluetooth/hci.h
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+++ b/include/net/bluetooth/hci.h
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@@ -263,6 +263,14 @@ enum {
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* during the hdev->setup vendor callback.
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*/
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HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN,
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+
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+ /* When this quirk is set, max_page for local extended features
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+ * is set to 1, even if controller reports higher number. Some
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+ * controllers (e.g. RTL8723CS) report more pages, but they
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+ * don't actually support features declared there.
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+ */
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+ HCI_QUIRK_BROKEN_LOCAL_EXT_FEATURES_PAGE_2,
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+
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};
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/* HCI device flags */
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diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
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index faca701bce2a..dc47d53b7ca5 100644
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--- a/net/bluetooth/hci_event.c
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+++ b/net/bluetooth/hci_event.c
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@@ -881,7 +881,9 @@ static u8 hci_cc_read_local_ext_features(struct hci_dev *hdev, void *data,
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if (rp->status)
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return rp->status;
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- if (hdev->max_page < rp->max_page)
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+ if (!test_bit(HCI_QUIRK_BROKEN_LOCAL_EXT_FEATURES_PAGE_2,
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+ &hdev->quirks) &&
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+ hdev->max_page < rp->max_page)
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hdev->max_page = rp->max_page;
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if (rp->page < HCI_MAX_PAGES)
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--
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2.39.1
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